JVM_IR: support function references with default parameters

compiler/testData/codegen/box/defaultArguments/referenceAsArg.kt

@@ -0,0 +1,8 @@
+// !LANGUAGE: +NewInference +FunctionReferenceWithDefaultValueAsOtherType
+// IGNORE_BACKEND: JS_IR
+
+inline fun String.app(f: (String) -> String) = f(this)
+
+fun fff(s: String, n: Int = 42) = s
+
+fun box() = "OK".app(::fff)